Well-drilling machinery.



No. 889,110. PATENTED MAY 26, 1908. H. R. DECKER. WELL DRILLINGMACHINERY.

APPLICATION FILED NOV. 8, 1906.

2 SHEETS-SHEET 1 nuenfoz Witwe/ono l 5 M/L/ I l 4 l v v' v No. 889,110.PATENTBD MAY 26, 1908.

H. R. DECKER. WELL DRILLING MACHINERY.

APPLICATION FILED NOV. 8. 1906.

2 SHEETS-SHEET 2 3 uve Non HARRY R. DECKER, OF HOUSTON, TEXAS.

WELL-DRILLIN G MACHINERY.

No. 889,1 Io.

Specication of Letters Patent.

Patented nay 26, 190s.

Application led November 8, 1906. Serial No. 342,532.

To all 'whom 'it may concern:

Be it known that I, HARRY R. DECKER, a citizen of the United States,residing at Houston, in the county of Harris'and State of Texas, haveinvented certain new and useful Improvements in Well-Drilling Machinery,of which the following is a specification. g

My invention relates to devices for drilling wells in alluvial depositsand known as rotary machines and has for its object the improvementv ofmachines of the character described looking to addingthereto parts bywhich the machines may also be used for screwing and unscrewingcasi.and-tubing.

The construction and operation of my improved device Will be vdescribedhereinafter and illustrated in the accompanying drawing? in Whichl igure1 is a vertical sectional view of my improved machine in osition forscrewing or unscrewing casing, 2, a detail view of the casing supportstand, Fig'. 3, a top plan view of the 'aws for clamping the casing, andFig. 4, a p an view of the .casing support stand. A

In the drawings similar reference characters indicate correspondingparts throughout the several views. l f

The base of the rotary drilling machine is shown at 1 and has securedthereto the base plate or ring 2 formed with a raceway ring 3 in whichare placed antif'riction bearings 4.

5 indicates a rotary table having a race- Wa ring 6 to receive and seaton bearings 4, an formed with an annularAl groove 7 in its side toreceive clamps 8 secured to base plate 2.

9 indicates a beveled ear face on table 5 and 10 a beveled gear wiee'lmeshing therewith and keyed to drive shaft 11. y

12 indicates the drill rod clam ing jaws slidably mounted on the top oftable 5 which may be of any desired construction. Adj acent to the outeredge of rotary table 5 are ears 13 having holes or slots 141therein.

15 indicates leg rests or seats secured to frame 1 and having sockets 16therein to receive the bottoms of legs 17 of a table 18having a centralopening, said table bein placed around the casing or drill tube 19, w enit is desired to screw or unscrew the tubing, by placing'git in positionsurrounding the upper end of the casing or drill tube and then lower ingit into the position as shown in the draw- 26 indicates an upright postsecured to table 18 to which is secured any device for preventing thetubing or casing in the well' rom turning while the length of tubing orcasing above is turned by the mechanism hereinafter described.

In the drawings the device for preventing the tubing or casing fromturning consists of a pair of pipe tongs 21 secured to coupling ring 19and with their handle engaging the post 20, but it will be understoodthat any other device maybe substituted for the pipe tongs if'desired.

22 indicates aniordinary construction of --elevatorused in handling welltubes and casings.

It will be understood that when the casing in the well is heldstationary, by the structure above described, the length of casino'above the cou ling ring 19 may be screwe or unscrewed y connecting itwith a rotary table 5 and then rotating the table in the directionnecessary to accomplish this. This may be done by securing another pairof tongs to the upper length of casing and prof viding a post orequivalent structure on the table 5, but I have found that a clamp,similar to that shown in the drawings, does the work more eectually.

The 'clamps shown in the drawings consist of arms 23 havin horizontalextensions 24 to fit into holes or s ots 14 in ears 13.

25 indicates plates pivotally secured to arms 23 with disks 26 journaledtherein to engage the tubing 19. l

27 indicates rods pivotally secured in ears 28 on one of the plates 25and adapted to seat in slots 29 in ears 30 on the other plate, the endsof said rods being screw-threaded as shown at 31 and 32 indicates nutsmounted on said rods.

It willbe understood that by screwing the vnuts 32 up on the rods thedisks are clamped into the tubing so that by rotating the table 5 andsecuring the coupling ring 19 the len th of tubing 19 above rin 19n isscrewe into or unscrewed out of t e ring, the disks 26 permittinlongitudinal movement of the tubing whi e being turned.

Having thus described the invention what I claim is- 1. In combinationwith a rotary for drilling) wells, and tubing in the well, a ring-liketa le mounted in the rotary and surrounding the tubing and having legs,said legs beingV secured independently of the rotarly, means to connectthe tubing and the ringike table ing, substantially as shown anddescribed.

3. In combination with a rotary for drilling wells, and tubing extendingthrou h the rotary, a ring-like table mounted in t e rotary andsurrounding the tubing and having legs secured independently oftherotary, a post secured on said table, means to connect said post andtubing, to hold the tubing stationary, and means to secure one length ofthe tubin to the rotary, substantially as shown an described.

4. In combination with a rotary for drilling wells mounted on a baseframe, and tub- 25 ing extending through the rotary, socketed leg restssecured to said basev frame, a rin like table surrounding the tubing inthe we and having legs resting in said socketed rests or seats, a postsecured to said table, means 3o to connect the tubing to said post tohold the tubing stationary, and clamping jaws removably secured to therotary to clamp one length of the tubing and turn it simultaneously W1ththe rotary, substantially as shown and described.

In testimony whereof I hereto affix my signature in the presence of twoWitnesses.

HARRY R. DECKER. Witnesses: i

G. C. BARTLY, E. L. DEERING.

